Granted Patent
Utility
US 5,439,251 · App. 08/158,307
Method of tetrazole amine salts having improved physical properties for generating gas in airbags
Inventors:
Atsuhiro Onishi, Hiroshi Tanaka
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Nov 29, 1993
Inventors
Atsuhiro Onishi
Hiroshi Tanaka
Assignee (at issue)
Toyo Kasei Kogyo Company Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.